My guesses:
OD vs DR determines whether a driving lay up is allowed to be initiated.
ID on guard is put against IS of attacker.
SB of help defender is put against DR of attacker.
Who can tell for sure that driving lay ups by DR 18 IS 3 player were successful vs. ID +3 guard in M2M? BB counts pitiful/atrocious=legendary/prominent. So you see Centers with awful JS and pitiful JR make 3s just because they're defended by Centers with atrocious OD.